Assignment inlining should still break if same number of lines

What happened?

We try to inline the prefix of initializers for assignments / declarations.

This can sometimes produce uglier code that doesn't even save space (takes up the same amount of lines).

For example:

Optional<DecoratedResource> maybeParent = parentId.filter(
                rid -> permissionsManager.canCreateSomeResource(authHeader, rid))
        .flatMap(...);

whereas what you really want is

Optional<DecoratedResource> maybeParent = parentId
        .filter(rid -> permissionsManager.canCreateSomeResource(authHeader, rid))
        .flatMap(...);

The issue names no files or tests. Start by locating the formatter logic for inlining assignment or declaration initializers, then reproduce the two Java examples. Done means an initializer is not inlined when the resulting layout uses the same number of lines and the example keeps the preferred line break.